11
It's notorious that NWC after the D.C. or D.S. does not applies the master repeats.
Well, that's one of the two "standards" and has its reasons. 
What happens with the lyrics looks instead as a bug.
I'm not one of the experts mentioned by Mike but I can suggest a workaround as follows.
!NoteWorthyComposer(2.751)
|Editor|ActiveStaff:1|CaretIndex:21|CaretPos:-1
|SongInfo|Title:""|Author:""|Lyricist:""|Copyright1:""|Copyright2:""
|PgSetup|StaffSize:16|Zoom:4|TitlePage:Y|JustifyVertically:Y|PrintSystemSepMark:N|ExtendLastSystem:N|DurationPadding:Y|PageNumbers:0|StaffLabels:None|BarNumbers:Plain|StartingBar:1
|Font|Style:StaffItalic|Typeface:"Times New Roman"|Size:10|Bold:Y|Italic:Y|CharSet:0
|Font|Style:StaffBold|Typeface:"Times New Roman"|Size:8|Bold:Y|Italic:N|CharSet:0
|Font|Style:StaffLyric|Typeface:"Times New Roman"|Size:7|Bold:N|Italic:N|CharSet:0
|Font|Style:PageTitleText|Typeface:"Times New Roman"|Size:24|Bold:Y|Italic:N|CharSet:0
|Font|Style:PageText|Typeface:"Times New Roman"|Size:12|Bold:N|Italic:N|CharSet:0
|Font|Style:PageSmallText|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|Font|Style:User1|Typeface:"MusikDingsSans"|Size:18|Bold:N|Italic:N|CharSet:0
|Font|Style:User2|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|Font|Style:User3|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|Font|Style:User4|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|Font|Style:User5|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|Font|Style:User6|Typeface:"Times New Roman"|Size:8|Bold:N|Italic:N|CharSet:0
|PgMargins|Left:1.27|Top:1.27|Right:1.27|Bottom:2.00|Mirror:N
|AddStaff|Name:"Staff"|Group:"Standard"
|StaffProperties|EndingBar:Open (hidden)|Visible:Y|BoundaryTop:12|BoundaryBottom:16|Lines:5|Color:Default
|StaffProperties|Muted:N|Volume:127|StereoPan:64|Device:0|Channel:1
|StaffInstrument|Trans:0|DynVel:10,30,45,60,75,92,108,127
|Lyrics|Placement:Bottom|Align:Standard Rules|Offset:0
|Lyric1|Text:"\n"
|Lyric2|Text:"two two two two\ntwo two two two\n"
|Lyric3|Text:"three three three three\nthree three three three\n"
|Clef|Type:Treble
|Key|Signature:C|Tonic:C
|Tempo|Tempo:220|Pos:10
|TimeSig|Signature:4/4
|Dynamic|Style:f|Pos:-8|Visibility:Never
|Note|Dur:Half|Pos:0|Opts:Lyric=Never
|Note|Dur:Half|Pos:0|Opts:Lyric=Never
|Bar
|Note|Dur:Half|Pos:0|Opts:Lyric=Never
|Note|Dur:Half|Pos:0|Opts:Lyric=Never
|Bar|Style:LocalRepeatClose|Repeat:2|Visibility:Never
|Ending|Visibility:Never
|Bar|Style:MasterRepeatClose
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Bar
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Flow|Style:DaCapo|Pos:10
|Bar|Style:SectionClose|SysBreak:Y
!NoteWorthyComposer-End
21
I don't know if this can be of help for you, but you can fake the master repeats.
!NoteWorthyComposerClip(2.751,Single)
|Text|Text:" "|Font:StaffSymbols|Pos:0|Justify:Center|Placement:AtNextNote
|Bar|Style:SectionOpen
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Text|Text:" "|Font:StaffSymbols|Pos:0|Justify:Center|Placement:AtNextNote
|Bar|Style:SectionClose
|Note|Dur:4th|Pos:-4
|Note|Dur:4th|Pos:-4
|Note|Dur:4th|Pos:-4
|Bar
|Text|Text:""|Font:StaffSymbols|Pos:-3|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:-1|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:1|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:3|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:-3.5|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:-2|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:0|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:2|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:0|Justify:Center|Placement:AtNextNote
|Bar
|Spacer|Width:300
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Note|Dur:4th|Pos:0
|Spacer|Width:300
|Text|Text:""|Font:StaffSymbols|Pos:-3|Justify:Right|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:-1|Justify:Right|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:1|Justify:Right|Placement:AtNextNote
|Text|Text:""|Font:StaffSymbols|Pos:3|Justify:Right|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:-3.5|Justify:Right|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:-2|Justify:Right|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:0|Justify:Right|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:2|Justify:Right|Placement:AtNextNote
|Text|Text:" "|Font:StaffSymbols|Scale:90|Pos:0|Justify:Center|Placement:AtNextNote
|Bar
!NoteWorthyComposerClip-End
32
PS 2: I exclude errors in the score
Sorry, Lorenzo, but I disagree.
The correct way to notate that is (as Mike said) as follows:
!NoteWorthyComposerClip(2.751,Single)
|Chord|Dur:8th|Pos:-9,-2|Opts:Stem=Up,Beam=First
|Spacer|Width:125
|Note|Dur:8th|Pos:-5|Opts:Stem=Up,Beam
|Chord|Dur:8th|Pos:-9,-2|Opts:Stem=Up,Beam
|Note|Dur:8th|Pos:-5|Opts:Stem=Up,Beam=End
|RestChord|Dur:8th|Opts:Stem=Down,ArticulationsOnStem,Muted|Dur2:4th|Pos2:-9|Color:1
|Spacer|Width:200
|User|Tremolo.ms|Pos:-2
|RestChord|Dur:8th|Opts:Stem=Down,ArticulationsOnStem,Muted|Dur2:4th|Pos2:-2|Color:1
|Chord|Dur:4th|Pos:-9,-2
!NoteWorthyComposerClip-End